Mechanism for selectively hooking segmental gate structures



L.E.KNERR- MECHANISM FOR SELECTIVELY I IOOKING SEGMENTAL GATESTRUCTURESFiled May 25, 1957 Patented Aug. 9, 1938 MECHANISM FOR .PATENT OFFICESELECTIVELY HOOKINGY SEGMENTAL GATE STRUCTURES Lewis E. Knerr, Portland,Oreg., assignor to the Government of the United States of America,represented by the Secretary of War Application May 25, 1937, SerialNo.144,614

Claims.

(Granted under the act of March 3, 1883, as amended April 30, 1928; 3700. G. 757) This invention described herein may be manufactured and usedby or for the Government for governmental purposes, without the paymentto me of any royalty thereon.

This invention generically relates to segmental barriers adapted to beused in connection with the entrance and exit portals of damconstructions of the type disclosed in the application of Harlan B.Holmes, Henry Blood and Milo C. Bell, filed June 2, 1937, Serial No.146,016 and entitled Method and apparatusfor transferring migratory fishover a dam structure. More specifically, this invention is directed to amechanism for selectively moving the segments of a segmental barrier.

One object of this invention is to provide a mechanism for collectivelymoving the segments of a segmental barrier and for selectively actuatingeither asingle segment or a group of segments, dependent'upon theselected level of the opening to be formed in the barrier.

Another object of this invention is toprovide a segmental barrier formedwith a passage adapted to accommodate a traveling hooking device, thehooking device having means adapted to co-act with suitable means ineach of the segments to enable the hooking device toelevate the barrieras a unit or to permit selective elevation of either a single segment orgroup of segments.

Another object of this invention is to provide a segmental barrier, thesegments of the barrier being formed with a central well, which when thevarious segments are arranged in superimposed relation, provide acentral channel adapted to accommodate the travel of a hooking device,having movable claws adapted to project in suitably arranged openingsformed in each of the segments, the claws being normally in collapsedposition but operable to an extended position to 40 project in theopenings when the device has been lowered to the selected segment.

Referring to the accompanying drawing in which corresponding parts areindicated by similar reference characters- Fig. 1 is a transversevertical section partly in elevation, illustrating a portion of asegmental barrier operably mounted between suitable uprights and showingthe hooking device and its operating mechanism;

Fig. 2 is a transverse vertical section partly in elevation,illustrating the hooking device in the channel of the barrier andshowing the indicator in connection with the operating mechanism for'the hooking device.

55 Fig. 3 is an enlarged fragmentary sectionized detail illustrating thehooking device, the mounting of the claws and. the yoke, adapted tooperate said claws, and

Figs. 4, 5, 6 and '7 are diagrammatic sectionized views illustratingrespectively the diiferent ad- 5 justments of the segments to positionthe opening at various elevations and showing the slid able member inclosing relation with respect to the opening at the different levelsthereof.

In the illustrated embodiment characterizing 10 this invention, Iindicates a pair of uprights suitably spaced and equipped with guiderails 2, which are adapted to be traveled by rollers 3, formed on theextremities of segments 5 and 6, of a segmental barrier I. Thesesegments which may be formedof metal, wood or other suitable materialare slidably positioned between the uprights I, as clearly shown inFigure I of the drawing.

Segments 5 and. 6 of barrier I are each formed with a central well 8,which when the segments are arranged in superimposed relation, as shownin Figure 1, are aligned to form in the barrier a centrally disposedvertically extending channel 9.

A hooking device In adapted to travel channel 9 is supported on one endof a hoisting chain I I, which extends over hoisting sprocket I2 and isprovided at its opposite end with a suitable counterweight I3. Thesprocket I2 is adapted to be operated by a suitable motor (not shown).Hooking device I0 comprises a plate II provided with aligned laterallyspaced pivot pins I2 which are adapted to pivotally support a pair ofclaws I5, which are normally disposed in a collapsed position, as shownin dotted line in Figure 1.

Claws I5 of hooking device I0 are operated by means of a tag line I 'I,one end of which is wound upon a tag line drum I8, driven by thehoisting mechanism I4, hereinafter to be referred to. The other, or freeend of tag line I! is connected to a yoke I9, the arms 20 of whichembrace claws I5, as clearly shown in Figure 2 of the drawing.

The free ends of yoke arms 20 are connected by a pin 2| which extendsbeneath claws I5 and frictionally engages their lower surface so that asthe yoke I9 is elevated by tag line H, claws I5 will be projected intothe openings I6 formed in the opposite walls of the. segment wells 8, asshown in Figure 1 of the drawing.

The hoisting mechanism for the tag line I! maybe of any desiredconstruction, but as shown, it consists of a driving motor 22 and a tagline hoisting drum I 8, which is adapted to be connected with motor 22by means of a lever oper- 55 ated clutch device 24. Shaft 25, carryingdrum 23 is geared to an indicator'26, adapted to show the position ofthe hooking device in the channel 9 so that the operator may be informedwhen the hooking device has reached the desired segment.

Having described the structural details of this invention, its operationis as follows: When the hooking device III has been lowered throughchannel 9 to the selectedbarrier shown by indicator 25, the normallycollapsed claws l5 'of the hooking device, actuated by tag line H arecaused to project into openings l6 of the selected barrier whereuponsprocket I2 and hoisting drum l8 are operated to hoist the hookingdevice and take up the tag line, as will be readily understood withoutfurther discussion. By means of the mechanism just described, thesegments of a segmental barrier may be elevated in groups to formopenings at various elevations as indicated by the openings shown at thelevels al, a2 and (13, Figure 3, or a single segment may be elevated toprovide an opening at the levels indicated a4, Figure 3.

In conclusion,rit will be seen that this invention provides a simplemechanism by means of which the segments of a segmental gate'or barriermay be relatively adjusted to provide openings in the gate or barrieratvarious elevations depending upon the level of the water to which theopening is adjusted.

Having described my invention, what I claim as new and wish to secure byLetters Patent is:

1. In a mechanism of the character described the combination with a gatesegment formed with a well; of a hooking device movable in the well,coacting means between the hooking device and the segment to eflfect aconnection therebetween and hoisting means in connection with saidhooking device.

2. In a selective mechanism of the character described the combinationwith a pair of gate segments, each of said segments being formed with awell, the respective wells being aligned; of a hooking device operablein the aligned wells and coacting means between the hooking device andthe respective segments to effect a connection therebetween and hoistingmeans in connection with said hooking device.

-3. In a selective mechanism of the character described, the combinationwith a gate segment having a well including oppositely disposed walls;of a hooking device operable in the well, normally collapsed clawscarried by the hooking device and adapted to project into openingsformed in the walls of the well, operating means in connection with saidclaws to cause their projection into said openings and hoisting meansassociated with the hooking device to effect its elevation.

4. In a selective mechanism of the character described the combinationwith a barrier composed of a plurality of superimposed segments, each ofsaid segments being formed with a passage, the passages of therespective segments being aligned to form a channel through the barrier;of a hooking device adapted to travel said channel, coacting means inconnection with the hooking device .and respective segments to effect aconnection therebetween and means to elevate said hooking device.

5. In a selective mechanism of the character described the combinationwith a barrier composed of a plurality of superimposed segments, eachsegment being formed with a well, the respective wells being aligned toform a channel, a hooking device adapted to travel in the channel, apair of normally collapsed claws carried by the hooking device andadapted to project through openings formed in the respective segments,means in connection with the claws to effect their projection into saidopenings, and additional means to elevate said hooking device.

LEWIS E. KNERR.

